Many user face QuickBooks error 3371 status code 11118 occurs due to missing or damaged files, resulting in non initializing of the license properties. To fix these errors, you need to update your Windows to the latest release. Additionally, you may try to uninstall and then reinstall using a Clean Install tool. The file QBregistration.dat is needed to run QB without error because this file contains the license information for this software. If nothing of these fixes works, you will have to verify any damaged MSXML components. If found, then run the QuickBooks Tool Hub to fix the error QuickBooks error 3371 status code 11118.